New research could help explain one of the "miracles" of childbirth – how the uterus contracts to push babies into the world. Computer models, developed by researchers in India and France, reveal that as the moment of birth approaches, the cells in the uterus become more electrically connected, enabling them to behave in synchrony. To date, it had not been clear how the cells in the uterus could act together to generate a large-scale contraction during labor. Read the associated APS Physics Synopsis.more